Grzegorz Marciniszyn (born 22 May 1977) is a retired Polish long jumper.
He finished ninth at the 2001 World Championships.
[3] the 2000 European Indoor Championships,[4] and the 2002 European Indoor Championships without reaching the final.
[7] His personal best jump was 8.28 metres, achieved in July 2001 in Mals.
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